Power Management ICs Forum Discussions
Hello All,
Recently I purchased https://www.infineon.com/cms/en/product/power/dc-dc-converters/digital-multiphase-controllers/gang-programmers/prg540101-4a/ PMIC programming Adaptor to program IRPS5401M. I followed user Manual instructions to get access for Setup files. Unfortunately didn't work. Let me know if there is a way to get access to setup files
Thanks
Kiran
Hello together,
I'm a bit confused. So I have drawn the gain-curves of the LLC converter. And they look fine on the nominal frequency scale:
In the diagram the numbers in the legend are the amount of load with 1 being 1500W at 100V output load. The formula used are:
Mg = 1/sqrt(Qe**2*(-fn + 1/fn)**2 + (1 + 1/Ln - 1/(Ln*fn**2))**2)
with fn=fsw/fr; Ln=Lm/Lr; Qe=sqrt(Lr/Cr)/Rac; Rac=8*Vout**2*n**2/(pi**2*Pout)
But when i determine the resonant frequencies for different Loads (graphically determined - cross checked with calculation) and draw the gain-curves across the switching frequency the area of the frequency range is way off than the desired 500kHz resonant. It's some where between 169819Hz -298807Hz.
The NullMg represents the gain-curve for the Null Load case.
The MaxiMg represents the gain-curve for the Maximal Load case, which is here the 1500W.
The FullMg represents the gain-curve for the Full Load case.
I was expecting a wider range when plotting the gain-curves with the resonant frequency for each load. Due to the relation between the resonant frequency and the load. But I did not expect such a big deviation.
Is this big deviation normal, or is maybe something with my fundamentals flawed?
Thanks for any advice.
PS: I used Ln=6; Qe=0.4 to determine the resonant circuit.
It should be noted that I know that choosing a smaller Ln results in a narrower frequency range, but additionally it results in increased conduction losses and decreased commutation losses.
Additionally a big Ln results in a big Lm, which is needed to keep the ZVS.
In the application note there is a control board How can I purchase that board? Where is the program of that MCU?
This diagram of the control part senses better current using opamps and CS resistor, Voltage sensing using opamp, Temperature sensing using NTC, And control board control power supply voltage using PWM signal so how this all things work?
And How I can do this for my power supply? I have the power supply design ready.
Show LessI'm seeking a very-low-parts-count, galvanically-isolated DC/DC converter.
Something like the TLE8386-2EL, but faster, to reduce transformer size.
We need to buck/stepdown.
- Power: 40 to 200 Watts
- Vin: 12-24V
- Vout: ~5V adjustable
- Speed: 1 Mhz or faster
Must support multiple outputs, ie series transformers. It's important for the outputs to be galvanically isolated from each other.
Show LessHello, using irs2092s design amplifier, I want to use the audio signal to control 2092, when there is audio 2092 working, no audio 2092 sleep, plan to control the Vcsd voltage of 2092 to make 2092 start quickly, shorten the Vcsd rise time (the purpose is that PWM starts slowly and causes audio loss). Are there any recommended solutions?
Show LessHello,
I am designing a 325V nominal DC to 72V DC convertor using ICE1HS01G-1. But don't get any solution from the datasheet or demo board documentation. So what is the way for feedback circuit design?
Thank in advance
Mark
Show LessHi there,
I enable the window watchdog in INIT state and it can move to NORMAL state. Then, when I make an overflow and restart the program to initialize the IC, it stuck/returns/stops in INIT state.
However, when I disable watchdog once, then the IC wouldn't be stuck in INIT state.
I set INITERR = 11111100 to clear the failure flag. And read the status flags from 1A to 1F, there is no error.
If I don't want to disable the watchdog once in INIT, what should I do? Or What mistake did I make?
Best Regards,
Leon
AN-1138 is described as follows:
1. How is condition 3 calculated, can you give an example? Is Vin an rms or peak-to-peak?
2. Is R1 related to the input voltage? If PWM is determined to be 360khz, how is R1 calculated? What is the effect of the value of R1 on the startup of 2092?
3. The following figure is the parameter I set, is it reasonable? Whether it affects the 2092 self-oscillation。
4, as shown in the figure below, I see that IRADAMP7s and IRADAMP5, IRAUDAMP9 are different in the feedback network, IRAUDAMP7s does not have Rfb1 and CFB, IRAUDAMP5, IRAUDAMP9 there is Rfb1=1k and CFb=150pf, what is the role of this RC for 2092 self-oscillation? IRAUDAMP7s are not required?
Hello Team, Could you please share sample code for configuring TLF35584
Power Management ICs
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